Abstract
The atmospheric trace molecule spectroscopy experiment (ATMOS) was designed to obtain high-resolution absorption spectra of the atmosphere from earth orbit, from which the vertical distributions of a large number of minor and trace molecular constituents could be retrieved. The ATMOS instrument is an FFT spectrometer covering the 600 to 5000 cm−1 frequency range and uses a double-passed, tilt-compensated optical configuration, with the two retroreflectors moving reciprocally. The scan time of 2 s gives spectra with an unapodized resolution of 0.01 cm−1, spaced 4 km apart, vertically.
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